1. Graves , RA and
Witte , WG . NASA Technical Note D-4713
2. Fan , W . 1968
3. Waid , M ,
Coughlin , S ,
Moloney , P ,
Nikolaev , P ,
Sosa , E ,
Gorelik , O ,
Boul , P and
Fowler , M . S.Arepalli, L. Yowell, J. Arnold, M. Stackpoole, W. Fan, B. Cruden and NASA biennial report,http://research.jsc.nasa.gov/BiennialResearchReport/PDF/Eng-14.pdf(2007)
4. Adsorption of organic molecules on silica surface